10 Common Causes Water Pump Humming but Not Pumping?

If your water pump humming but not pumping, there could be a few different issues at play. In this blog post, we’ll explore some of the most common causes and what you can do to fix them.

How Can I Fix a Water Pump That Is Humming but Not Pumping?

There are several possible causes for a water pump to hum but not pump water. Here are a few troubleshooting steps you can try:

  1. Check the power supply: Make sure that the pump is properly wired and that there is adequate power getting to it.
  2. Check the pressure switch: Make sure that the pressure switch, which turns the pump on and off, is functioning properly.
  3. Check the impeller: Make sure that the impeller, which is responsible for moving the water, is not clogged or damaged.
  4. Check the check valve: Make sure that the check valve, which prevents water from flowing back into the well, is not clogged or damaged.
  5. Check the foot valve: Make sure that the foot valve, which prevents water from flowing back into the well, is not clogged or damaged.

If none of these steps resolves the issue, it may be best to call a professional plumber for further diagnosis and repair.

Water Pump Humming But Not Pumping

Is It Normal for a Water Pump to Hum?

It is not normal for a water pump to hum, but it can make noise. A humming sound could indicate that the pump is not functioning correctly and that there may be an issue with the motor or the bearings.

A humming sound could mean that the water pump is not receiving enough power, or that the impeller is clogged or damaged, which causes the motor to work harder than it should.

A humming sound can also indicate that the water pump is running dry, which can cause damage to the motor. This could happen if the water level in the well is low or if the check valve or foot valve is not working properly.

It’s important to identify the cause of the humming sound as soon as possible and fix it, as it could cause more serious problems if left unresolved.

Why Is My Water Pump Not Pumping Water?

There are several possible causes for a water pump not pumping water. Some of the most common include:

  1. Power supply: Make sure that the pump is properly wired and that there is adequate power getting to it.
  2. Pressure switch: Make sure that the pressure switch, which turns the pump on and off, is functioning properly.
  3. Impeller: Make sure that the impeller, which is responsible for moving the water, is not clogged or damaged.
  4. Check valve: Make sure that the check valve, which prevents water from flowing back into the well, is not clogged or damaged.
  5. Foot valve: Make sure that the foot valve, which prevents water from flowing back into the well, is not clogged or damaged.
  6. Low water level: The water level in the well may be too low for the pump to function properly.
  7. Air Lock: Air lock may be caused by a broken pipe, a closed valve, or a blocked suction pipe, and it can prevent the pump from working properly.
  8. Motor or Pump failure: Motor or pump failure can be caused by various reasons, such as overheating, overloading, or old age, which can cause the pump to stop working.

If none of these steps resolves the issue, it may be best to call a professional plumber for further diagnosis and repair.

What Do I Do if My Water Pump Is Not Pumping Water?

If your water pump is not pumping water, here are some steps you can take to troubleshoot the problem:

  • Check the power supply: Make sure that the pump is properly wired and that there is adequate power getting to it.
  • Check the pressure switch: Make sure that the pressure switch, which turns the pump on and off, is functioning properly.
  • Check the impeller: Make sure that the impeller, which is responsible for moving the water, is not clogged or damaged.
  • Check the check valve: Make sure that the check valve, which prevents water from flowing back into the well, is not clogged or damaged.
  • Check the foot valve: Make sure that the foot valve, which prevents water from flowing back into the well, is not clogged or damaged.
  • Check the water level: Make sure that the water level in the well is sufficient for the pump to function properly.
  • Check for Air lock: Check for an airlock by opening the valve or removing the blockage from the suction pipe.
  • Check the Motor and Pump: Check the motor of the pump if it is overheating or making strange noises. If the motor is running fine, the pump may need to be repaired or replaced.

If these steps do not resolve the problem or you are unsure of how to proceed, it may be best to call a professional plumber for further diagnosis and repair.

What Are Some Common Problems With Water Pumps?

Here are some common problems that can occur with water pumps:

  1. Power supply issues: This can include problems with wiring, circuit breakers, or fuses, which can prevent the pump from receiving power.
  2. Pressure switch issues: The pressure switch, which turns the pump on and off, may malfunction, preventing the pump from working.
  3. Impeller issues: The impeller, which is responsible for moving water, can become clogged or damaged, preventing the pump from working.
  4. Check valve issues: The check valve, which prevents water from flowing back into the well, can become clogged or damaged, preventing the pump from working.
  5. Foot valve issues: The foot valve, which prevents water from flowing back into the well, can become clogged or damaged, preventing the pump from working.
  6. Low water level: The water level in the well may be too low for the pump to function properly.
  7. Air Lock: Air lock may be caused by a broken pipe, a closed valve, or a blocked suction pipe, and it can prevent the pump from working properly.
  8. Motor or Pump failure: Motor or pump failure can be caused by various reasons, such as overheating, overloading, or old age, which can cause the pump to stop working.
  9. Control Box: The control box may have malfunctioned, preventing the power to reach the pump.
  10. Leak: leak in the pipe or pump can cause the pump to lose prime, meaning water is not flowing to the pump, causing the pump to stop working.

It is important to address these issues as soon as they arise, to prevent further damage or costly repairs in the future. If you are unsure of how to proceed, it may be best to call a professional plumber for further diagnosis and repair.

How Can I Prevent My Water Pump From Humming or Not Pumping?

Here are some ways to prevent your water pump from humming or not pumping:

  1. Regular Maintenance: Regularly inspecting and maintaining your water pump can help to prevent issues from arising. This includes checking the power supply, pressure switch, impeller, check valve, and foot valve.
  2. Keep an eye on the water level: Make sure that the water level in the well is sufficient for the pump to function properly.
  3. Keep an eye on the motor: Check the motor of the pump if it is overheating or making strange noises. If the motor is running fine, the pump may need to be repaired or replaced.
  4. Keep an eye on the pipes: Check for leaks, cracks, or any other damage to the pipes that can cause air lock or loss prime in the pump
  5. Use a professional plumber: Have a professional plumber come out to your property and do a thorough check of your water pump and well system to ensure that everything is working properly and to make any necessary repairs.
  6. Use quality parts: When replacing parts, make sure to use quality parts that are designed to work with your specific water pump.

By following these preventative measures, you can help to ensure that your water pump continues to function properly and avoid costly repairs in the future.

FAQs

Some common FAQs about water pumps include:

How Do I Know if My Water Pump Is Working?

You can check if your water pump is working by checking the water pressure in your home and listening to the sound of the pump turning on and off.

How Often Should I Have My Water Pump Serviced?

It is recommended to have your water pump serviced once a year.

How Do I Know if My Water Pump Needs to Be Replaced?

Signs that your water pump may need to be replaced include a lack of water pressure, strange noises, or if the pump is over 10 years old.

How Do I Prime a Water Pump?

To prime a water pump, you will need to fill the pump and pipes with water. This can typically be done by turning on a nearby faucet or by using a hose to fill the pump with water.

Can I Fix My Water Pump Myself?

Some issues with water pumps can be fixed by the homeowner, such as clogged impellers or stuck check valves. However, more complex issues may require a professional plumber.

Why Is My Sump Pump Humming but Not Pumping?

A low humming sound from a sump pump is often completely normal. However, if the pump starts humming louder than usual and/or isn’t pumping water, it’s time to investigate. First, check the vents for clogs and clean them if necessary. If that doesn’t help, you may have a stuck check valve.

How Long Does a Water Pump Last?

The lifespan of a water pump can vary, typically water pumps last between 7-10 years.

What Is the Difference Between a Shallow Well and a Deep Well Water Pump?

A shallow well pump is used when the water level is less than 25 feet below the surface. A deep well pump is used when the water level is more than 25 feet below the surface.

What Is the Difference Between a Jet Pump and a Submersible Pump?

Jet pumps are installed above ground and use suction to draw water from the well. Submersible pumps are installed below ground and are immersed in the water.

Conclusion

In conclusion, a water pump is an important component of a well water system, and it is important to keep it in good working order to ensure a reliable supply of water. Common problems with water pumps include power supply issues, pressure switch issues, impeller issues, check valve issues, foot valve issues, low water levels, airlock, motor or pump failure, control box malfunction, and leaks. 

It’s important to address these issues as soon as they arise, to prevent further damage or costly repairs in the future. Regular maintenance, using quality parts, and hiring a professional plumber when needed can help to prevent problems from arising and ensure that your water pump continues to function properly.

References

  1. https://www.nugentsons.com/blog/sump-pump-noises-solutions

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